(quote)Flutter
Others have commented, and I believe rightly, that fields of the era did not show wide tracks from tractors.
I'm not sure why you think a field with wide rows indicate a tractor passed over the field. Some crops demand a greater distance from one another, and so "wide"could have been made using a horse back then. One thing though, is that most farm field rows are plowed running north/south to allow for maximum sunlight exposure, east/west at times to control erosion.
